Tracking fin whale calls offshore the Galicia Margin, North East Atlantic Ocean
| Autor: | Jordi Díaz Cusí, Oriol Gaspà Rebull, Josep Gallart Muset, Mario Ruiz Fernández |
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| Rok vydání: | 2006 |
| Předmět: |
Seismometer
Sound Spectrography Acoustics and Ultrasonics Cetacea Marine mammal Arts and Humanities (miscellaneous) biology.animal Animals Biocommunications Atlantic Ocean Fin Whale biology Whale biology.organism_classification Seismometers Seafloor spreading Oceanography Underwater sound Acoustic signature Submarine pipeline Vocalization Animal Underwater acoustics Bioacoustics Algorithms Geology Seismology Acoustic signal processing |
| Zdroj: | Digital.CSIC: Repositorio Institucional del CSIC Consejo Superior de Investigaciones Científicas (CSIC) |
| ISSN: | 0001-4966 |
| DOI: | 10.1121/1.2336751 |
| Popis: | 9 pages.-- PACS: 43.60.Jn; 43.30.Sf; 43.80.Ka Data recorded during a temporary deployment of ocean bottom seismometers (OBSs) are used in this study to monitor the presence of fin whales around the array. In the summer of 2003, ten OBSs were placed 250 km from the NW coast of Iberia in the Galicia Margin, NE Atlantic Ocean for a period of one month. The recorded data set provided a large variety of signals, including fin whale vocalizations identified by their specific acoustic signature. The use of a dense array of seafloor receivers allowed investigation into the locations and tracks of the signal-generating whales using a seismological hypocentral location code. Individual pulses of different sequences have been chosen to study such tracks. Problems related to the correct identification of pulses, discrimination between direct and multiple arrivals, and the presence of more than one individual have been considered prior to location. Fin calls were concentrated in the last two weeks of the deployment and the locations were spread around the area covered by the array. These results illustrate that, besides its classical seismological aim, deployment of semipermanent seafloor seismic arrays can also provide valuable data for marine mammal behavior studies. |
| Databáze: | OpenAIRE |
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